Index: uspace/lib/drv/include/ddf/interrupt.h
===================================================================
--- uspace/lib/drv/include/ddf/interrupt.h	(revision 071a1ddbcc6bb2b9c6f3c1a3acc865f1f23b5fe0)
+++ uspace/lib/drv/include/ddf/interrupt.h	(revision f04b5b3bf75e5d5987007f7a9d2cdd7d90bd5978)
@@ -52,5 +52,5 @@
 extern int register_interrupt_handler(ddf_dev_t *, int, interrupt_handler_t *,
     const irq_code_t *, cap_handle_t *);
-extern int unregister_interrupt_handler(ddf_dev_t *, int);
+extern int unregister_interrupt_handler(ddf_dev_t *, cap_handle_t);
 
 #endif